text: /*
   * Licensed to Elasticsearch B.V. under one or more contributor
   * license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright
   * ownership. Elasticsearch B.V. licenses this file to you under
   * the Apache License, Version 2.0 (the "License"); you may
   * not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  import { i18n } from '@kbn/i18n';
  import _ from 'lodash';
  import Datasource from '../lib/classes/datasource';
  import Bluebird from 'bluebird';
  
  export default new Datasource ('static', {
    aliases: ['value'],
    args: [
      {
        name: 'value', // _test-data.users.*.data
        types: ['number', 'string'],
        help: i18n.translate('timelion.help.functions.static.args.valueHelpText', {
          defaultMessage:
            'The single value to to display, you can also pass several values and I will interpolate them evenly across your time range.',
        }),
      },
      {
        name: 'label',
        types: ['string', 'null'],
        help: i18n.translate('timelion.help.functions.static.args.labelHelpText', {
          defaultMessage:
            'A quick way to set the label for the series. You could also use the .label() function',
        }),
      }
    ],
    help: i18n.translate('timelion.help.functions.staticHelpText', {
      defaultMessage: 'Draws a single value across the chart',
    }),
    fn: function staticFn(args, tlConfig) {
  
      let data;
      const target = tlConfig.getTargetSeries();
      if (typeof args.byName.value === 'string') {
        const points = args.byName.value.split(':');
        const begin = _.first(target)[0];
        const end = _.last(target)[0];
        const step = (end - begin) / (points.length - 1);
        data = _.map(points, function (point, i) {
          return [begin + (i * step), parseFloat(point)];
        });
      } else {
        data = _.map(target, function (bucket) {
          return [bucket[0], args.byName.value];
        });
      }
  
      return Bluebird.resolve({
        type: 'seriesList',
        list: [
          {
            data: data,
            type: 'series',
            label: args.byName.label == null ? String(args.byName.value) : args.byName.label,
            fit: args.byName.fit || 'average'
          }
        ]
      });
    }
  });
  